OptoSigma's FNDU-50C02-92 is a 50 mm diameter, unmounted, reflective neutral density filter, designed for use in the ultraviolet region of the spectrum, specifically between 200-400nm. This filter is part of the UVFS series, identified by the material ID 'uvfs mal- 1965'.
The filter boasts a thickness of 2mm, providing a robust and durable construction. It features a 'Thin Lens' shape, which is beneficial for applications where minimal optical path difference is crucial. The filter's neutral density coating, 'opt fndu-92', is applied to both the front and back surfaces, ensuring consistent attenuation across the entire spectrum.
This filter is currently in stock and available for purchase through the vendor's website. The catalog number FNDU-50C02-92 uniquely identifies this product, and the web link provided leads directly to the product page for convenient access.